package demo03;

@First
class Student {
    @First
    private String address;
    public Student() { }
    @First
    public Student(String address) { this.address = address; }
    @First
    public void show (@First int age){
        @First
        String name="张三";
        System.out.println("naem = " + name);
        System.out.println("age = " + age);
    }
}